Improvement in blacksmiths  tuyeres



v. TAYLOR'.

Blacksmiths' Tyeres. i No.A 161,993. A PatentedApri|13,1875.

OOOOOOOO OOOOOOOOO OOOOOOOOO OOOOOOOO STATES PATENT OFFICE.

VENRENSSELAER R. TAYLOR, OF SYRAOUSE, NEW YORK.

IMPROVEMENT IN BLACKSIVIITHS TUVERES.

Specification forming part of Letters Patent No. 161,993, dated April13, 1875; application tiled March 3, 1815.

To all whom it may concern:

Be it known that I, VENRENSSELAER R. TAYLOR, of Syracuse, State of NewYork, have invented Improvements in Blacksmiths Forge-Backs, of whichthe following'is a specification:

My invention has for its object the durability of the forge-back, abetter combustion and saving 4of fuel, increase of heat, ability ofregulating the fire, prevention of explosions of gas in the bellows, andof clogging themouth or outlet.

The construction of this improved forgeback and the functions of itsparts are plainly seen in the drawing, wherein Figure lis an isometricview of the forge-back complete; Fig. 2, a front view of same; Fig. 3, aplan view of the inner face of the cover or outer' plate; Fig. 4, a planview of the inner facev of the intermediate perforated plate; Fig. 5, across-section immediately back of the end plate, showing the combinationand functions of its parts.

A is a chamber, having its front or forgebacli proper projectingoutward, as shown in Fig. 2, and its rear closed by plate a, to which isattached the inlet-tube b, projecting` inward and through the perforatedplate c, placed about midway in the chamber A, where it rests onshoulders cl d, cast on the inside of the chamber, and is held there bythe taper of the inlet-tube b. e e are bolts by which the cover a isfastened to the chamber. To the intermediate perforated plate c, nearthe bottom, are attached two or more outlettubes, a u, the ends of whichfit into corresponding openings n a in the front of the chamber A. O isa valve or movable cover, iitting the outlet-tube a, arranged to beoperated from the outside of the chamber by any suitable device, andaccording to the position or construction of the forge. rlhe bellows orblast is connected with the inlet-tube b, and the air, as it is forcedthrough this tube, strikes the solid front plate of the chamber, theoutside of which is exposed to the fire. It thence passes through theperforated plate c into the outlet-tubes n a. In its circuit, asindicated by arrows in the drawing, it cools the front plate orforge-back proper, and takes up the heat; or, in other words, is heatedby the contact with the front plate, upon which it is spread by theretardation from the perforated plate c, and by the time it o reachesthe outlets it is converted into a hotblast, causing a better combustionof the fuel and creating a hotter fire than a cold-blast. The cooling ofthe forge-back by the blast, as described, prevents it from burning out.The fire can be regulated according to the heat required by opening orclosing one or more of the outlet-tubes a with the valve or cover o.

Explosions of gas in the bellows, which so often occur through ordinaryforge-backs, are rendered an utter impossibility by the use of myinvention, as, by the intermediate plate c, the gas is prevented fromentering the bellows; and since it is a side blast or a forgebackapplied at the side of the forge it keeps always clear and never clogsup, as is frequently the case with what is termed a hensnest Iire-back,7and some others which are applied to the forge from underneath the fire.

I find that the bellows work much easier with my improved forge-backthan any other I ever used, caused, principally, by the rarefaction ofthe air between the front and intermediate plate c.

Having thus fully described my invention, I claim- The improvedblacksmiths forge-back herein described, consisting of the chamber A,having a beveled projecting front, the cover a, having attached theretothe inward-projecting inlet-tube b, the intermediate perforated plate c,having attached thereto the outlets a n, the valve 0, and bolts c c,constructed and operating substantially as described, for the purposespecified.

In testimony whereof I have signed my naine and affixed my seal in thepresence of two attesting witnesses, at Syracuse, in the county ofOnondaga, and State of N ew York,

this 21th day of February, 1875.

VENRENSSELAER R. TAYLOR. [L. s.]

Witnesses CHRIS. HoLMsTaUP, CHAs. H. HEY.

